Mining too slow, wrong configurations?

[a7853z]

We build a bitcoin-candy mining pool using z-nomp, but the speed to generate blocks looks abnormal. It's insanely slow compared to our hashing power, wonder if there's anyone who can help us figure this out. Here is the URL of our mining pool: http://pool.cdy.one/ The official website of bitcoin-candy is: https://cdy.one/

Bitcoin-candy uses equihash as pow algorithm, and generate blocks every two minutes.

Some configurations: "clustering": { "enabled": true, "forks": 8 },

"defaultPoolConfigs": {
    "blockRefreshInterval": 500,
    "jobRebroadcastTimeout": 35,
    "connectionTimeout": 600,
    "emitInvalidBlockHashes": false,
    "validateWorkerUsername": true,
    "tcpProxyProtocol": false,
    "banning": {
        "enabled": true,
        "time": 600,
        "invalidPercent": 50,
        "checkThreshold": 500,
        "purgeInterval": 300
    },
    "redis": {
        "host": "127.0.0.1",
        "port": 6379,
        "password": ""
    }
},

"ports": {
    "3857": {
        "tls":false,
        "diff": 0.1,
        "varDiff": {
            "minDiff": 0.04,
            "maxDiff": 16,
            "targetTime": 15,
            "retargetTime": 90,
            "variancePercent": 30
        }
    },
   "3856": {
        "diff": 32
    }
},

[a7853z]

Equihash verifying bug invites fake miners.